No shit!

When you only have buds simple reflux is enough,
percolator will be used for trimmings.

did you try out the methods suggested? or just write here back and forth? seems like you have been given all the answers...
like before, alkanes are best, quick isopropanol wash comes a close second.
there is really no need for reflux, and like jon said, soxhlet is much better. Ive found that 2-3 room temp extractions with alkanes works satisfactory, gives good yields, and is very easy to do. Ive done it up with up to 600g of low grade arabian cannabis. got roughly 40-50g of honey colored oil, which vaporizes fully with no residue.
i suggest you try out one of the methods instead of discussing it to oblivion.

good luck!

I tried to extract with petrolether but had too little.
Used coffe grinder to grind down plant material (25cm long bud) into dust and submerged it into warm
chloroform for 20min sinc I had it handy. Than filtered.

Ended up with a deep green solution that is evaporating right now.

Due the lack of attention some of the chloroform was spilled itno
coffe grinder causing some plastic to be solvated and it ended up in extract

Will try to evaporate it completely and make glycerine tincture.(For sublingual use)
Hope that plastic will perticipate and go away if I do that.

Rest of the plant material was sawed and it will be extracted with petrolether
once I got it.

Yeah...
Low b.p. hydrocarbons are way to go but didn't have them enough at hand...

Thanks on polymers tip!

dude! be careful with thc extracts! I know someone that allmost burned down a million dollar cabin(freakin hippie lol) when they where extracting with butane. they had a glass full of boiling butane being heldby someone, when they went to light a incense charcoal, the flame jumped  from the charcoal to the jar, setting the whole thing on fire. the person spilled some on his hand and burned the FUCK out of himself. He wanted to go to the hospital sooo bad, but what do you say? I burned my self making hashoil. yeah right. think again hippy! next time be more careful and heres some aloe!

happy Xtracting!

also, someone once told me, that if you use buds instead of leaf to make oil, the quality goes WAY up! I believe that is how they make the famous "brown sugar" hash oil.

and if you are dead set on making an extract with a solvent, I heard anhydrous Ethanol is the preferred way. But there are lots of ways to extract cannabis

I prefer full melt bubble hash personally

i think most people here and even most people in general understand the dangers of a cabin full of butane... not to mention you wont find many chemists lighting up incense when working with solvents... even so welcome here and this is quite an interesting thread

especially interested in freezing out hashoil impurities

Thanks on polymers tip!

Crystallization is rather challenging, it can take a very long period of time  If a seed crystal is provided it becomes much easier 

Oerlikon,, if you filter your extract with paper coffee filters when its in the solution, most of the plant matter and other small particles of    will be removed

 and then upon evaporating (or whatever method you use to remove the solvent) you will be left with a reddish to honey colored oil/resin

  96% Etoh works really well,, and takes less than 24 hours---why make it hard for your self?

  Of course 'buds' are more than likely to have more resin in them than the other parts of the plant....
          
    But as Taurine monster says,,IF you DO have nice resin coated buds,,"Bubble hash" is a great way to make hash,,AS GOOD as most imported hash of high quality--go to you tube and check out Bubble hash,,  which uses ice water and sieves (which you will need to buy,,but they work wonders,,,)

   The first time I saw some 'Bubble hash',,which was, before I had even heard of "bubble hash",,if it hadnt been via someone I knew well and trusted,, I dont think I would have believed it WASNT  Afghani or Nepalese!!!  but it was made with good ole 'seedy heads' in middle Oz
  
 It's quite 'unique' IMO

  As for "brown sugar" hash oil?  Thats a new one for me!!! Never even heard of it  Maybe 'brown sugar' heroin.....which most certainly made quite a name for itself 'back in the day'...T

  The Strolling Bones,, er the Rolling Stones wrote a song about it IIRC--nor really my type of band except for 4-5 songs of which Gimme Shelter+Paint it Black are two